[Maxima] New Maxima user has problem
b_baker at hotmail.com
Thu Mar 13 15:00:40 CDT 2008
Thanks, Jaime. This may explain why Raymond and I got different results. I was using 5.13.0, which came bundled with Euler. I saw on the Maxima web site there is a newer version, so I installed 5.14.0. It gives me the same result. Now I guess I need to know what Clisp and GCL are and how to tell which one I am using. (The second time I was really running wxMaxima, which is the icon that appeared when I installed 5.14.0.) I also sometimes received the "Too many contexts" error if I tried again with different arguments without first exiting and restarting Maxima.
> Subject: Re: [Maxima] New Maxima user has problem> From: villate at fe.up.pt> To: raymond.toy at ericsson.com> CC: b_baker at hotmail.com; maxima at math.utexas.edu> Date: Thu, 13 Mar 2008 14:12:43 +0000> > > On Thu, 2008-03-13 at 08:17 -0400, Raymond Toy (RT/EUS) wrote:> > Bob Baker wrote:> > > Well, I tried running Maxima directly in a command window. I gave the > > > commands and got exactly the same reply. So I don't think Euler can be > > > blamed for it. Did you try these commands to see what happens on your > > > system?> > > > Yes, I did. That's how I knew it was asking a question. Doesn't it ask > > you? Did it run for a long time before the error message? It runs for > > quite a while, but I stopped it after a bit.> > > > What version are you using?> > Using 5.14.0 + Clisp, I get the same result as Raymond (a question and> an integration that never ends). Using 5.14.0 + GCL, I get the same> error message Bob is getting and no questions.> > Bob, notice that your integral could be written in a simpler form:> > f(x):=log(2-cos(x)+sqrt(3+cos(x)*(cos(x)-4)))$> integrate(2*(1-exp(-abs(1)*f(x))*cos(3*x))/(exp(f(x))-exp(-f(x))),x,0,%> pi);> > (I don't know how to make Maxima expand sinh(x) in terms of> exponentials, without doing the same for sin(x)).> > using that simpler form, 5.14.0+clisp immediately gives up, while 5.14.0> +GCL now gives a different error message:> > Too many contexts.> -- an error. To debug this try debugmode(true);> > Hope that helps someone to tells us what GCL is doing differently from> Clisp.> Regards,> Jaime Villate> > >
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